Oarlock



April 7, 1931. o. J. RAMsTAD 1,799,440

oARLocK Filed July T5, 1930 3 Sheets-Sheet ll April 7, 1931.* o. J.RAMs'rAD 1,799,440

OARLOCK Filed July s, 195o s sheets-sheet 2 I .April 7, 1931 o. .1.RAMsTAD OARLOGK Filed July 3, 1930 5 Sheets-Sheet 3 /N VEN TOR PatentedApr. 7, 1931 UNITED STATES OSCAR JULIUS RAMSTAD, OF DONALDA, ALBERTA,CANADA.

OARLOCK Application mea July 3, 1930.L serial No. 465,578.

This present invention relates to certain new and useful improvements inoar locks.

The primary object of the invention resides in the provision ofimprovedoar locks which may be readily mounted in adjusted position yon a rowboat or the like and operated from different seat-s with the operatorfacingy either end of the boat.

Another object of the invention resides in the provision of oar locks ofthe character stated which may be inverted or reversed to advance theoars toward one end of the boat or position them near the longitudinalcentre thereof for more effective operation of the4 operation of theoars when tilted in various inclined planes with the strain on the oarsand the operating hand grip connected therewith evenly distributed katall times lduring operation of the oars.v

' The invention has for a still further object the provision of oarlocks of the character Y stated which may be eectively operated onvarious types of row boats and the like and may be readily appliedthereto or removedl 35 without the necessity of employing special toolsor skilled workmen. l l The invention has for a still further object theprovision of oar locks of the character stated which are of extremelysimple and 40 inexpensive construction as well as highly ecient in useand may be readily mounted on or removed from the boat, or inverted askdesired. y

- The invention has for a still further obj ect the provision of oarlocks of the character to each oar on .'theoperatingstated which may bemanufactured at small cost and retailed at a ypopular price with goodproiit,thus providing a commercially attractive proposition.

To the accomplishment of these and related objects as shall becomeapparent as the description proceeds, my invention resides inthe'construction, combination and arrangementv of parts as shallbeihereinafter more fully described, illustrated in the accompanyingdrawings and'pointed out in the claims hereunto appended.

' The'invention will be best understood and can be more clearlydescribed, when reference is had'to the drawings forming a part of thisdisclosure wherein like characters indi-y cate like parts throughout theseveral views. In the drawings Y Figure 1 is ka. plan of a conventionalrow boat with the present invention applied lthereto and showing theoars .mounted in their forwardly advanced position; i u

Figure 2 is a view similar to AFigure l, showing the oars inverted toposition them nearer the centre of the boat;

Figure 3 is an enlarged perspective view, showing the normal mounting ofthe oars as illustrated in `Figure 1 and with the greater portion oftheboat broken away for the sake of iclearness; Y l l 1 Figure l is afragmentary detail section, showing clearly the mounting or supportingmeans for the oars and the operating hand grip therefor; and

Figure 5 is a fragmentary elevation, partly so in section, showing aslight modification of the invention. n ,j

`Referring more in detail to the drawings,

it will be noted that each oar 6 has three eyes 7 projecting from theside thereof in 85 spaced relation, near the inner end of the oar 6. Anoperating memberV 8 is provided foreach oar 6 and also carries threecorrespondingly spaced eyes 9 projecting laterally from the sidethereof. The operatingmem- .90

ber 8 has a portion shaped to form a hand grip 10. A pair of crossedconnecting rods 11 are employed for connecting the ontermost eyes 7 and9 of each oar 6 and its operating member 8, with the oar 6 and itsoperating member 8 normally in parallel spaced relation. The centre eyes7 and 9 of the oar 6 and its operating member 8, respectively, areremovably mounted on upstanding supporting studs 12 which are eX- tendedupwardly in spaced relation through side strips 18 providedv at theupper edges of the sides 111 of a row boat 15 or the like and alsothrough short additional bracing strips 16 placed on the upper edges ofthe strips 18 and having oppositely bevelled ends 17. Bearing washers 18are secured on the projecting upper ends of the studs 12 to rest on theupper face of ,the bracing strips 16 through which the studs 12 areextended so that the central eyes 7 and 9 may rest on the bearingwashers 18 and thus prevent wearing of the face of the bracing strip 16.Bearing washers 1S are also mounted on the lower ends of the studs 12 tobear against the underface of the strip 13 and lock nuts 2O are threadedin the lower extremities of the studs 12 and brought into bindingengagement with the under faces of the washers 19. Y

In the modified forni, shown in Figure 5, the pair of supporting studs12a are formed together and connected at their lowerfends by thetransverse connecting arm 12?), thusl presenting a substantiallyU-shaped member which is embedded in a bracing strip 16a with the upperends of the studs 12a projecting above the upper face of the bracingstrip 16a. In this case, however, the bracing strip 16a is secured onthe outer side face of the upper side strips 13 of the boat sides 14, bybolts 13a or other appropriate fastening means. The upper face of thebracing strip 16a is rounded or convexed transversely to prevent theoars 6 and the hand grip 10 therefor from catching on the bracing strip16a.

As the construction of the device has thus been `described in detail,brief reference is now had to its use and modus operandi: It is to beunderstood that all of the eyes 7 may be extended from one side of theoar 6 and arranged in alivnment or the centre ring or oye 7 may beextended from the side opposite to the side from which the rings or eyes7 having the rods 11 connected thereto are eX- jtended. The same 1s trueof the rings or eyes 9 carried by the oar operating member 8. .As shownin Figures 1 and 3, the oars 6 may be positioned forwardly of theoperating members 8 and thus advanced toward the forward end of the boat15. When it is desired to position the oars 6 nearer the front of theboat 15, it is simply necessary to raise f them together with theiroperating members 8 from on the supporting studs 12 or 12a and invertthem, thus positioning the oars 6 rearwardly of their operating members8. This is possible, due to the fact that the centre rings or eyes 7 and9 may be readily raised irom and replaced on the supporting studs 12 or12a, as desired. It is also apparent that the oars 6 may be permitted totilt, with their operating members 8 at any time, during operation ot'the oars 6. lt is also apparent that either oar may be changed to theother side of the boat as the oars are readily interchangeable as wellas being reversible yor invertible with their respective operatingmembers 8. In either position of the oars 6, each stroke oi the oars 6is made with both a driving and a drawing force, owing to the crossingof the connecting rods 11 between each oar 6 and its operating member 8,thus thoroughly equalizing the strain and distributing the same overeach oar 6 and its Operating member 8. By properly positioning the oars6 and their operating members 8 on the stubs 12 or 12a, the hand grips10 of the operating members 8 are brought into proper position foroperation of the oars 6 either from the centre seat or the forwardseatof the boat 15, as preferred.

From the foregoing description, taken in connection with theaccompanying drawings, it will be manifest that oar locks are providedthat will :tuliill all the necessary requirements et' such a device, butas many changes could be made in the above description, and manyapparently widely dierent embodiments of my invention may be constructedwithin the scope of the appendedclaims withont departing from the spiritor scope thereof, it is intended vthat all matters contained in the saidaccompanying specification and drawings, shall be interpreted asillustrative and not in alimited sense.

VHaving thus described my invention, what i claim as new and desire tosecure by Letters Patent is 1. Oar locks including spaced mountingmembers; oars having a series of eyes proliecting from the side thereof;operating members for said oars each having a ser-ies of eyes projectingfrom the side thereof and a hand grip; the central eyes of said oars andsaid operating members being adapted for removable engagement on saidmounting members; and crossed connecting links between each oar and theoperating member therefor connecting the outermost eyes of said oar andits operating member.

2. Oar locks including a pair of upstanding mounting studs for each sideofthe boat; a pair of oars with a series of spaced eyes projecting fromone side of each oit' said oars; an voperating member for said oarhaving corresponding eyes extended from the side thereof; each ot saidoperating members having a hand grip; a pair of crossed connecting rodsfor connectingy the outermost eyes of e each oar with the outermost eyesof the op-

